On 09/05/2018 02:07 PM, Richard W.M. Jones wrote:
I just hit a weird bug.  When I typed:

   $ sudo dnf update --best /mnt<tab>sc<tab>

bash exited (and with it, my ssh session) saying:

   *** stack smashing detected ***: <unknown> terminated
   Connection to srv closed.

This was after updating to glibc-2.28-9.fc29.x86_64.
Unfortunately I cannot seem to reproduce it on demand.

That looks rather unusual.  From which version did you update?

The good news is that a coredump was collected.  The bad news is
it looks pretty useless:

   Thread 1 (Thread 0x7f13c7b7d740 (LWP 31373)):
   #0  0x00007f13c71ce46f in ?? ()
   #1  0x0000000000000000 in ?? ()

Before I file a bug, what component should be used?  What other
information is useful?  Why would this happen just from keyboard
input?

Please try get a backtrace with debuginfo installed.  Thanks.

Florian
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